When choosing the best teeth whitening treatment for you, it’s important to understand the relation that stained teeth have to the health of your teeth.
Not all stains are cosmetic, sometimes they can be a sign that something is wrong with the tooth, or that the stain is too deep for teeth whitening—in which case you would need a porcelain veneer, or dental bonding, to conceal the stain.
Other times the cause of tooth discolouration is decay. To treat tooth decay, requires removing the decayed tooth pulp and replacing it with a white filling. The filling material will be colour-matched to your tooth to blend in.